what does Remaining Amount column in Payables Trial Balance Report represent

In Oracle R12 the Payables Trial balance report contains following columns

1) GL Balance

2) Other Sources

3) Sub-Ledger manual

4) Original Amount

5) Remaining Amount

The GL Balance column of Payables Trial Balance reconcile with Ledger but we need to understand why remaining balance is higher than GL Balance column and how should we reconcile this with GL? Where can I find more info. to reconcile remaining amount

thanks